Thanks. What did you do with the two wires on the transformer, did you twine them together or did you insulate them from eachother? Also... what were those tests on the capacitors ! super interested in that... how and what were they? I only just picked up a really nice old scope recently and I don't really know what to use it for. Up to now for capacitors I just put them on the old condenser checker. I want to know more about the tests you were doing at the end with the scope. (the hobby is valve/tube stereo repair, specifically early consumer stereo's 1950's 60's).
those protruding wires were a factory defect, and since it was only a couple of strands, I simply cut them off so that they would no longer pose a risk of shorting to another winding or to the transformer case. Then I insulated with hot glue, then re-potted the entire transformer with hot glue. Regarding the capacitors, I am not sure what you are referring to. Did you want ESR readings for the original electrolytics that were shot? Or do you mean those caps being tested with the curve tracer function? Either way, I would suggest that you watch my older WO-33b videos, I have better demonstrations of using the curve tracer functionality in those videos. In practice, you would not use a curve tracer to test capacitors because it is not the best tool for that purpose. Curve tracers have limited use, in my opinion, but can be quite useful in selective situations. They are best used to check IC's for leakage or defects, in my opinion. For example, Mr. Carlsen has a good older video where he finds a defective IC in a Sansui B-77 amp using a curve tracer. That is the type of problem where a curve tracer is a very good tool. Compare the working channel vs the defective channel. Also, a curve tracer can be very good for pinball machine circuit board repair, assuming that you have a working board to use a reference to compare traces vs the defective board. When using a curve tracer, it is a "must" to have a working sample to use as a reference for "what is good", otherwise it is often impossible to know whether what you are looking at is a proper curve or not. This video was mainly to show a very rare type of manufacturing defect and how I resolved it, and also the process of removing the transformer just in case anyone else needs to do so with their own unit. Curve tracing examples can be found in my previous WO-33b videos.
Thanks. What did you do with the two wires on the transformer, did you twine them together or did you insulate them from eachother? Also... what were those tests on the capacitors ! super interested in that... how and what were they? I only just picked up a really nice old scope recently and I don't really know what to use it for. Up to now for capacitors I just put them on the old condenser checker. I want to know more about the tests you were doing at the end with the scope. (the hobby is valve/tube stereo repair, specifically early consumer stereo's 1950's 60's).
those protruding wires were a factory defect, and since it was only a couple of strands, I simply cut them off so that they would no longer pose a risk of shorting to another winding or to the transformer case. Then I insulated with hot glue, then re-potted the entire transformer with hot glue.
Regarding the capacitors, I am not sure what you are referring to. Did you want ESR readings for the original electrolytics that were shot? Or do you mean those caps being tested with the curve tracer function? Either way, I would suggest that you watch my older WO-33b videos, I have better demonstrations of using the curve tracer functionality in those videos.
In practice, you would not use a curve tracer to test capacitors because it is not the best tool for that purpose. Curve tracers have limited use, in my opinion, but can be quite useful in selective situations. They are best used to check IC's for leakage or defects, in my opinion. For example, Mr. Carlsen has a good older video where he finds a defective IC in a Sansui B-77 amp using a curve tracer. That is the type of problem where a curve tracer is a very good tool. Compare the working channel vs the defective channel. Also, a curve tracer can be very good for pinball machine circuit board repair, assuming that you have a working board to use a reference to compare traces vs the defective board. When using a curve tracer, it is a "must" to have a working sample to use as a reference for "what is good", otherwise it is often impossible to know whether what you are looking at is a proper curve or not.
This video was mainly to show a very rare type of manufacturing defect and how I resolved it, and also the process of removing the transformer just in case anyone else needs to do so with their own unit. Curve tracing examples can be found in my previous WO-33b videos.